Michell Instruments HygroSmart HS3 humidity probe

The HygroSmart HS3 humidity probe from Michell Instruments has been designed to withstand the demanding conditions found in industrial processes. The product uses polymer tile to give long-term reliable measurements. It also has an accuracy of 0.8%RH and, according to the company, is among the most accurate and reliable RH probes on the market.

The probe has a solid, corrosion-resistant body with an interchangeable sensor. When recalibration is due, the old sensor is exchanged for a freshly calibrated one. Replacing just the sensor, rather than the whole probe, is simple.

In most industrial applications, probes need to withstand vibration, exposure to water, occasional heavy shocks and high levels of electrical interference. The product is designed to cope with all these environmental factors. As well as the solid body, it also has a 10 bar pressure rating, RFI/EMC electrical noise approvals and IP67 ingress protection rating.

As well as its ability to withstand harsh process conditions, the probe also gives control to the user, as it is 100% configurable. This gives users the ability to alter their RH and temperature measurements to keep step with changes or developments in their process.